On My 2nd Air Bubbler In A Month, Am I Doing Something Wrong?

the first one was a cheap one and wasnt man enough to get bubbles through the 10" bubble tube, only lasted 2 weeks, the 2nd one is a fluval Q2 one meant to be capable of up to a 600 litre tank, i have a fluval 200 litre tank.

it lasted 2 weeks as well!, slowly deteriorating.

i have the pump then check valve then up to the bubbler, am i missing something?? cant be a coincidence surely? 

I have never used a bubbler powered by an air pump, so I'm just guessing.
I've looked at the instructions for the U2. Can I run through them to make sure you've done exactly what they say.

Connected the pump to the check valve the right way round (as Anne said)
Attached another piece of airline tubing to the check valve at one end and the bubbler at the other.
Checked that there are no kinks anywhere in either section of airline tubing (pump to check valve and check valve to bubbler)

Are you using just one thing attached to the pump? The instructions say that if you are using multiple attachments you need one more outlet than accessories to "bleed over production of air due to back pressure build up".

Have you adjusted the rheostat to give higher air flow or is it set too low?



Other than this, you need to wait until someone who uses bubblers to give their opinion 

Decided to ditch the strip bubbler for a normal airstone,  I recon there was too much resistance in the line rendering the pump diaphragm faulty, I've gotten a replacement pump from amazon too so all good!